Swivel-loom.



PATENTED MAY 26, 1908.

A. LANG. SWIVEL LOOM. APPLICATION rnizm JULY 14. 1906.

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PA TBNTED MA 26, 1908; A; LANG. SWIVEL Lo0M.- I AIPLIOATIOH FILED JULY 14, 1906.

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ADOLF LANG, OF WEST HOBOKEN, NEW JERSEY, ASSIGNOR TO OROMPTON & KNOWLES LOOM WORKS.

SWIVEL LOOM.

Specification of Letters Patent.

Patented May 26, 1908.

Application filed July 14, 1906. Serial No. 326,186.

To all whom it may concern: I

Be it known that I, ADoLF LANG, a subject of Emperor William of Germany, residing at West Hoboken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Swivel-Looms, of which the following is a specification.

My invention relates to swivel looms in which, in addition to the, ordinary fly shuttle for. weaving the body of the fabric, circular shuttles, or other devices are used to weave spots or small figures 011 the face of the fabric, according to the indications of the jacquard, or other pattern mechanism. The circular shuttles are mounted on a shuttle rail, which is supported over the race-way of the lay, and which is positively lowered at predetermined times, and all the swivel shuttles are moved. transversely through the shed formed, to weave the spots or small figures on the face of the fabric, and the swivel shuttle rail is then raised, to allow the passage of the ordinary fiy shuttle, all in the usual and well known way.

The object of my invention is to provide for looms of the class referred to, means to automatically stop the loom whenever there is any irregularity of movement of the swivel shuttle rail, so that the warp threads are not properly positioned for the swivel shuttles to weave the spots or small figures on the face of the fabric. The irregularity of movement of the swivel shuttle rail may be caused through the failure of the jacquard or other pattern mechanism to operate in the proper manner, or the failure of any of the working parts of the loom to work in a proper manner so that the warp threads become caught under the blocks on the shuttle rail between the recessed portions, thus preventing the passage of the threads into the open space between the blocks, for the proper operation of the swivel shuttles.

I have only shown in the drawings, detached portions of a loom of the class referred to, sufiicient to illustrate my improvements applied thereto, and to enable those skilled in the art to understand the construction and operation thereof.

Referring to the drawings :Figure 1 is a front elevation of a detached portion of one end of a swivel shuttle rail with my improvements applied thereto. Fig. 2 shows, on an enlarged scale, detached parts of the swivel shuttle rail shown in Fig. 1. Fig. 3 is a plan view of the parts shown in Fig. 2. Fig. 4 is a section, on line 4, 4, Fig. 2, looking in the direction of arrow (1, same figure. Fig. 5 is a section, on line 5, 5, Fig. 1, looking in the direction of arrow 6, same figure. Fig. 6 shows, on an enlarged scale, the rack and crank lever motion, detached, looking in the.

direction of arrow 0, Fig. 5, and, Fig. 7 is a partial section, on line 7, 7, Fig. 6, looking in the direction of arrow (1, same figure.

In the accompanying drawings, 1, Fig. 5, is a detached portion of an end-frame of a loom, 2 is the breast-beam, 3 the lay, 4 the lay-sword.

5 is the swivel shuttle rail, which is supported above the lay 3, in any usual and well known way, and is operated, to be lowered and raised at predetermined times, and has its lower edge provided with a series of recesses 5 therein, and blocks 5 intermediate said recesses. The swivel shuttle rail 5. is provided in this instance with a series of swivel shuttles 6, of circular shape, which are operated through a longitudinally moving reciprocating rack 7, pinions 8 and horse-shoe shaped pinions 9 carried on the swivel shuttle rail, all in the usual and well known way. The longitudinally moving reciprocating rack 7 is operated in this instance through a plate 7 secured to the rack 7, and a connector 10 to a crank lever 11 operated through a pinion 12 and a vertically moving rack 13. In the longitudinal movement of the rack 7, the plate 7 is moved from the position shown by full lines in Fig. 1 to the position shown by broken lines in said. figure.

The mechanism for operating the swivel shuttle rail 5 to move it transversely of the fabric may be of any usual and well known construction and operation, and such mechanism is shown in U. S. Letters Patent, No. 753,741. In this instance an angle lever 14 has a roll 14 which travels in a vertically extending recess in a plate 15. The lever 14 is operated through a rod or connector 14 in the usual way.

I will now describe my improvements for automatically stopping the loom in case of 1 any irregularity of movement of the swivel shuttle rail.

My improvements are in this instance shown in the form of a vertically moving plate 16 which is preferably located at the rear of the swivel shuttle rail, see Fig. 4, directly back of one of the blocks 5, and between two of the recessed portions 5. The plate 16 has a slot or elongated opening 16 therein, see Fig. 2, through which preferably extends a stud 8 carrying a pinion 8. The lower end of the plate 16 is preferably made of convex shape with two end projections 16. The upper end of the plate 16 is made of T shape, as shown at 16', Fig. 2. In its normal inoperative position, the lower end of the plate 16 extends below the block 5 as shown in Fig. 1, with its T shaped end out of the path of the sliding stand 7, carrying the plate 7", projecting beyond each edge of th stand, see Figs. 1, 2, and 3.

In case of any irregularity of the longitudinal movement of the swivel shuttle rail, so that when it descends, the series of warp threads which are raised for the formation of the figure or spot thereon, do not pass into the recessed portions 5 at the lower edge of the rail, but engage the blocks 5 between said recessed portions, as shown in Fig. 2, then in the downward movement of the swivel shuttle rail, the engagement of one or more threads with the lower end of the vertically moving plate 16 will raise said plate as shown in Fig. 2. The raising of the plate 16 will bring its T shaped upper end 16 in the path of the plate 7 on the stand 7, and will stop the longitudinal or reciprocating movement of said stand and the rack 7, and other parts for operating the swivel shuttles, and thus prevent the movement of the swivel shuttles, and consequently the breakage of the warp threads.

The stopping of the longitudinal movement of the swivel shuttle rack 7, will through intermediate connections operate to automatically stop the loom.

The pinion 12 has a hub 12, see Fig. 7, loosely mounted on the shaft 17 having the pinion 12 loosely mounted thereon, and the crank lever 11 fast thereon, and having a bearing 17, and is connected by a spring give-way mechanism 18 with a cam disk 19 splined on the shaft 17, through projections 19 on said disk 19, entering recesses 12", in the pinion 12, see Fig. 7.

The crank lever 11 is fast on the shaft 17. The reciprocating movement of the rack 13 at regular intervals, operated from some driven part of the loom, will, when moved in one direction, through the rotation of the pinion 12, with which it is held in engagement by a roll 13, see Figs. 1, and 6, communicate a partial rotary movement to said pinion 12, and through the engagement of said pinion with the cam disk 19, communicate a partial rotary movement to said cam disk and also to the shaft 17, and through the crank lever 11 and connector 10, move the plate 7 and rack 7. The movement of the rack 13 in an opposite direction will, through intermediate connections, move the rack 7 in the opposite direction.

In case of the raising of the plate 16 by the engagement of the lower end thereof with one or more warp threads, as above described, the upper end 16 of said plate will extend in the path of movement of the plate 7 and prevent any further movement of said plate. The stopping of the plate 7 will, through connector 10 and crank lever 11 fast on the shaft 17, stop the rotation of the shaft 17 when it has made about one-half of its rotary movement, and also stop the rotation of the cam disk 19 fast on said shaft, with said cam and in a position where the roll 20 is on the high part of the cam. The pinion 12 through its spring give-way connection with the cam disk 19, will be disconnected from said cam and continue to operate, through the continued operation of the rack 13. The roll 20 being on the high part of the cam disk 19, and mounted on the upper end of the vertically moving lever 21, will have moved said lever 21 to its highest position, and through its connection at its lower end with the centrally pivoted lever 22, see Fig. 1, will move the outer end of said lever upwardly, and the inner end of said lever downwardly, and cause it to engage the rear end of the dagger 23, centrally pivoted on the underside of the lay, see Fig. 5, against the action of the helically coiled contraction spring 23, and bring the outer end of the dagger 23 in the path of and adapted to engage the projection 24 on the rock shaft 25 to cause the rotation of said shaft, and the stopping of the loom, in the usual way.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a swivel shuttle loom, the combination with the swivel shuttle rail, having a series of recesses therein for the passage of the warp threads, and filling thread carriers, and means for operating'said filling thread carriers, of means, connected with the shuttle rail, to automatically stop the loom, and the filling thread carriers, in case of irregularity of movement of the swivel shuttle rail.

2. In a swivel shuttle loom, the combination with the swivel shuttle rail having a series of recesses therein for the passage of the warp threads, and filling thread carriers, and means for operating said carriers, of imeans, connected with the shuttle rail, to

automatically stop the loom, and the filling the downward movement of the swivel shutthread oarriers,hin case1 ofh irregularlity 0; tie rail.

movement of t e sWiVe s uttle rai sai means comprising a device normally retained ADOLF LANG in its inoperative position, and automatic- Witnesses:

ally moved into its operative position by en- L. DINNHAUPT,

gagement with one or more Warp threads, on MORRIs EIOHMANN. 

